diff --git a/gradle.properties b/gradle.properties
index 1ab81d9..d18bae9 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -5,7 +5,7 @@ MORNY_ARCHIVE_NAME = morny-coeur
 MORNY_CODE_STORE = https://github.com/Eyre-S/Coeur-Morny-Cono
 MORNY_COMMIT_PATH = https://github.com/Eyre-S/Coeur-Morny-Cono/commit/%s
 
-VERSION = 1.0.0-RC2.1
+VERSION = 1.0.0-RC3
 
 USE_DELTA = false
 VERSION_DELTA =
diff --git a/src/main/java/cc/sukazyo/cono/morny/MornyConfig.java b/src/main/java/cc/sukazyo/cono/morny/MornyConfig.java
index be61e15..bdc8893 100644
--- a/src/main/java/cc/sukazyo/cono/morny/MornyConfig.java
+++ b/src/main/java/cc/sukazyo/cono/morny/MornyConfig.java
@@ -3,6 +3,7 @@ package cc.sukazyo.cono.morny;
 import javax.annotation.Nonnull;
 import javax.annotation.Nullable;
 import java.lang.annotation.*;
+import java.time.ZoneOffset;
 import java.util.HashSet;
 import java.util.Set;
 
@@ -114,6 +115,16 @@ public class MornyConfig {
 	@Nonnull public final Set<Long> dinnerTrustedReaders;
 	public final long dinnerChatId;
 	
+	/* ======================================= *
+	 *  function: medication timer             *
+	 * ======================================= */
+	
+	public final long medicationNotifyToChat;
+	
+	@Nonnull public final ZoneOffset medicationTimerUseTimezone;
+	
+	@Nonnull public final Set<Integer> medicationNotifyAt;
+	
 	/* ======================================= *
 	 *  End Configs | ConfigBuilder            *
 	 * ======================================= */
@@ -134,11 +145,16 @@ public class MornyConfig {
 		this.dinnerTrustedReaders = prototype.dinnerTrustedReaders;
 		this.dinnerChatId = prototype.dinnerChatId;
 		this.reportToChat = prototype.reportToChat;
+		this.medicationNotifyToChat = prototype.medicationNotifyToChat;
+		this.medicationTimerUseTimezone = prototype.medicationTimerUseTimezone;
+		prototype.medicationNotifyAt.forEach(i -> { if (i < 0 || i > 23) throw new CheckFailure.UnavailableTimeInMedicationNotifyAt(); });
+		this.medicationNotifyAt = prototype.medicationNotifyAt;
 	}
 	
-	public static class CheckFailure extends Exception {
+	public static class CheckFailure extends RuntimeException {
 		public static class NullTelegramBotKey extends CheckFailure {}
 		public static class UnsetEventOutdatedTimestamp extends CheckFailure {}
+		public static class UnavailableTimeInMedicationNotifyAt extends CheckFailure {}
 	}
 	
 	public static class Prototype {
@@ -156,6 +172,9 @@ public class MornyConfig {
 		@Nonnull public Set<Long> dinnerTrustedReaders = new HashSet<>();
 		public long dinnerChatId = -1001707106392L;
 		public long reportToChat = -1001650050443L;
+		public long medicationNotifyToChat = -1001729016815L;
+		@Nonnull public ZoneOffset medicationTimerUseTimezone = ZoneOffset.UTC;
+		@Nonnull public Set<Integer> medicationNotifyAt = new HashSet<>();
 		
 	}
 	
diff --git a/src/main/java/cc/sukazyo/cono/morny/ServerMain.java b/src/main/java/cc/sukazyo/cono/morny/ServerMain.java
index e9237ee..ba8e79e 100644
--- a/src/main/java/cc/sukazyo/cono/morny/ServerMain.java
+++ b/src/main/java/cc/sukazyo/cono/morny/ServerMain.java
@@ -4,6 +4,8 @@ import cc.sukazyo.cono.morny.util.CommonFormat;
 
 import javax.annotation.Nonnull;
 
+import java.time.ZoneOffset;
+
 import static cc.sukazyo.cono.morny.Log.logger;
 
 /**
@@ -166,6 +168,22 @@ public class ServerMain {
 						config.reportToChat = Long.parseLong(args[i]);
 						continue;
 					}
+					case "--medication-notify-chat", "-medc" -> {
+						i++;
+						config.medicationNotifyToChat = Long.parseLong(args[i]);
+						continue;
+					}
+					case "--medication-notify-timezone", "-medtz" -> {
+						i++;
+						config.medicationTimerUseTimezone = ZoneOffset.ofHours(Integer.parseInt(args[i]));
+						continue;
+					}
+					case "--medication-notify-times", "-medt" -> {
+						i++;
+						for (String u : args[i].split(","))
+							config.medicationNotifyAt.add(Integer.parseInt(u));
+						continue;
+					}
 				}
 				
 			}
diff --git a/src/main/java/cc/sukazyo/cono/morny/bot/event/OnMedicationNotifyApply.java b/src/main/java/cc/sukazyo/cono/morny/bot/event/OnMedicationNotifyApply.java
index a5bd835..7217635 100644
--- a/src/main/java/cc/sukazyo/cono/morny/bot/event/OnMedicationNotifyApply.java
+++ b/src/main/java/cc/sukazyo/cono/morny/bot/event/OnMedicationNotifyApply.java
@@ -1,7 +1,7 @@
 package cc.sukazyo.cono.morny.bot.event;
 
+import cc.sukazyo.cono.morny.MornyCoeur;
 import cc.sukazyo.cono.morny.bot.api.EventListener;
-import cc.sukazyo.cono.morny.daemon.MedicationTimer;
 import cc.sukazyo.cono.morny.daemon.MornyDaemons;
 import com.pengrad.telegrambot.model.Message;
 import com.pengrad.telegrambot.model.Update;
@@ -20,7 +20,7 @@ public class OnMedicationNotifyApply extends EventListener {
 	}
 	
 	private boolean editedMessageProcess (Message edited) {
-		if (edited.chat().id() != MedicationTimer.NOTIFY_CHAT) return false;
+		if (edited.chat().id() != MornyCoeur.config().medicationNotifyToChat) return false;
 		MornyDaemons.medicationTimerInstance.refreshNotificationWrite(edited);
 		return true;
 	}
diff --git a/src/main/java/cc/sukazyo/cono/morny/daemon/MedicationTimer.java b/src/main/java/cc/sukazyo/cono/morny/daemon/MedicationTimer.java
index dec57fa..6760b4e 100644
--- a/src/main/java/cc/sukazyo/cono/morny/daemon/MedicationTimer.java
+++ b/src/main/java/cc/sukazyo/cono/morny/daemon/MedicationTimer.java
@@ -20,15 +20,16 @@ import static cc.sukazyo.cono.morny.Log.logger;
 
 public class MedicationTimer extends Thread {
 	
-	public static final ZoneOffset USE_TIME_ZONE = ZoneOffset.ofHours(8);
-	public static final Set<Integer> NOTIFY_AT_HOUR = Set.of(12);
-	public static final long NOTIFY_CHAT = -1001729016815L;
+	private final ZoneOffset USE_TIME_ZONE = MornyCoeur.config().medicationTimerUseTimezone;
+	private final Set<Integer> NOTIFY_AT_HOUR = MornyCoeur.config().medicationNotifyAt;
+	private final long NOTIFY_CHAT = MornyCoeur.config().medicationNotifyToChat;
 	public static final String NOTIFY_MESSAGE = "\uD83C\uDF65⏲";
 	private static final String DAEMON_THREAD_NAME = "TIMER_Medication";
 	
 	private static final long LAST_NOTIFY_ID_NULL = -1L;
 	private long lastNotify = LAST_NOTIFY_ID_NULL;
 	
+	public static class NoNotifyTimeTag extends Throwable { private NoNotifyTimeTag(){} }
 	
 	MedicationTimer () {
 		super(DAEMON_THREAD_NAME);
@@ -44,6 +45,9 @@ public class MedicationTimer extends Thread {
 			} catch (InterruptedException e) {
 				interrupt();
 				logger.info("MedicationTimer was interrupted, will be exit now");
+			} catch (NoNotifyTimeTag ignored) {
+				logger.warn("Notify Time not Set and the MedicationTimer will not working!\nMedicationTimer will be exit now.");
+				interrupt();
 			} catch (Exception e) {
 				logger.error("Unexpected error occurred");
 				logger.error(exceptionLog(e));
@@ -74,9 +78,11 @@ public class MedicationTimer extends Thread {
 		lastNotify = LAST_NOTIFY_ID_NULL;
 	}
 	
-	public static long calcNextRoutineTimestamp (long baseTimeMillis, ZoneOffset useTimeZone, Set<Integer> atHours) {
+	public static long calcNextRoutineTimestamp (long baseTimeMillis, ZoneOffset useTimeZone, Set<Integer> atHours)
+	throws NoNotifyTimeTag {
+		if (atHours.isEmpty()) throw new NoNotifyTimeTag();
 		LocalDateTime time = LocalDateTime.ofEpochSecond(
-				baseTimeMillis/1000, (int)baseTimeMillis%1000*1000,
+				baseTimeMillis/1000, (int)(baseTimeMillis%1000)*1000*1000,
 				useTimeZone
 		).withMinute(0).withSecond(0).withNano(0);
 		do {
@@ -85,7 +91,7 @@ public class MedicationTimer extends Thread {
 		return time.withMinute(0).withSecond(0).withNano(0).toInstant(useTimeZone).toEpochMilli();
 	}
 	
-	private void waitToNextRoutine () throws InterruptedException {
+	private void waitToNextRoutine () throws InterruptedException, NoNotifyTimeTag {
 		sleep(calcNextRoutineTimestamp(System.currentTimeMillis(), USE_TIME_ZONE, NOTIFY_AT_HOUR) - System.currentTimeMillis());
 	}
 	
diff --git a/src/test/java/cc/sukazyo/cono/morny/daemon/TestMedicationTimer.java b/src/test/java/cc/sukazyo/cono/morny/daemon/TestMedicationTimer.java
index cb74065..58600ce 100644
--- a/src/test/java/cc/sukazyo/cono/morny/daemon/TestMedicationTimer.java
+++ b/src/test/java/cc/sukazyo/cono/morny/daemon/TestMedicationTimer.java
@@ -12,18 +12,23 @@ public class TestMedicationTimer {
 	
 	@ParameterizedTest
 	@CsvSource(textBlock = """
-			2022-11-13T13:14:35+08, +08, 2022-11-14T12:00:00+08
-			2022-11-13T13:14:35+02, +02, 2022-11-14T12:00:00+02
-			2022-11-13T08:14:35+08, +08, 2022-11-13T12:00:00+08
-			2022-11-13T00:14:35+08, +08, 2022-11-13T12:00:00+08
-			2022-11-13T12:00:00+00, +00, 2022-11-14T12:00:00+00
+			2022-11-13T13:14:35.000+08, +08, 2022-11-13T19:00:00+08
+			2022-11-13T13:14:35.174+02, +02, 2022-11-13T19:00:00+02
+			1998-02-01T08:14:35.871+08, +08, 1998-02-01T19:00:00+08
+			2022-11-13T00:00:00.000-01, -01, 2022-11-13T07:00:00-01
+			2022-11-21T19:00:00.000+00, +00, 2022-11-21T21:00:00+00
+			2022-12-31T21:00:00.000+00, +00, 2023-01-01T07:00:00+00
+			2125-11-18T23:45:27.062+00, +00, 2125-11-19T07:00:00+00
 			""")
-	void testCalcNextRoutineTimestamp (ZonedDateTime base, ZoneOffset zoneHour, ZonedDateTime expected) {
-		final Set<Integer> at = Set.of(12);
+	void testCalcNextRoutineTimestamp (ZonedDateTime base, ZoneOffset zoneHour, ZonedDateTime expected)
+	throws MedicationTimer.NoNotifyTimeTag {
+		final Set<Integer> at = Set.of(7, 19, 21);
+		System.out.println("base.toInstant().toEpochMilli() = " + base.toInstant().toEpochMilli());
 		Assertions.assertEquals(
-				expected.toEpochSecond()*1000,
-				MedicationTimer.calcNextRoutineTimestamp(base.toEpochSecond()*1000, zoneHour, at)
+				expected.toInstant().toEpochMilli(),
+				MedicationTimer.calcNextRoutineTimestamp(base.toInstant().toEpochMilli(), zoneHour, at)
 		);
+		System.out.println(" ok");
 	}
 	
 }